/**
 *   Licensed to the Apache Software Foundation (ASF) under one
 *   or more contributor license agreements.  See the NOTICE file
 *   distributed with this work for additional information
 *   regarding copyright ownership.  The ASF licenses this file
 *   to you under the Apache License, Version 2.0 (the
 *   "License"); you may not use this file except in compliance
 *   with the License.  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

package com.qlangtech.tis.install;


import com.qlangtech.tis.extension.ExtensionList;

import javax.inject.Provider;
import java.util.List;

/**
 * Allows plugging in to the lifecycle when determining InstallState
 * from {@link InstallUtil#getNextInstallState(InstallState)}
 */
public abstract class InstallStateFilter {
    /**
     * Determine the current or next install state, proceed with `return proceed.next()`
     */
    public abstract InstallState getNextInstallState(InstallState current, Provider<InstallState> proceed);

    /**
     * Get all the InstallStateFilters, in extension order
     */
    public static List<InstallStateFilter> all() {
        return ExtensionList.lookup(InstallStateFilter.class);
    }
}
